Reliance Electric 1AC2105U Variable Frequency Drive

Reliance Electric 1AC2105U is a 5 horsepower AC drive (variable frequency drive) designed to power 3-phase motors from a 230 VAC supply. The unit accepts a 200–230 V, 50/60 Hz three-phase input and provides variable-frequency control for three-phase motors, with a full-load current rating of 19 A. As part of the Reliance Electric AC DRIVE family, the 1AC2105U is a general‑purpose drive intended to regulate motor speed and torque by varying output frequency, enabling smoother starts and energy-efficient operation in compatible equipment. This version corresponds to 5 HP at 230 V, and the 1AC2105U designation identifies the precise rating within the broader drive lineup, helping match the motor and control system to ensure proper performance. The drive is designed for industrial environments where reliable, adjustable-speed motor control is required and is compatible with standard three-phase power supplies used in many facilities.